Hi people. Got 3 MVP 2's. Got last one right before 20 watt came out. Doesn't matter I guess, don't go above 10 any way. Will be reading up on replacing 510 with flush mount. Dropped one of mine & it didn't help the threads.
One of these might solve your threading woes. eGo to [eGo] Adapter Uses the ego threading and gives you new 510 connection.